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A pressure cooker is often used to compensate for the low atmospheric pressure at very high elevations. Under these circumstances, water boils at temperatures significantly below 100 °C and, without the use of a pressure cooker, may leave boiled foods undercooked. Charles Darwin commented on this phenomenon in The Voyage of the Beagle: [1]
The system can be traced back to the measuring systems of the Hindus [18]: B-9 and the ancient Egyptians, who subdivided the hekat (about 4.8 litres) into parts of 1 ⁄ 2, 1 ⁄ 4, 1 ⁄ 8, 1 ⁄ 16, 1 ⁄ 32, and 1 ⁄ 64 (1 ro, or mouthful, or about 14.5 ml), [19] and the hin similarly down to 1 ⁄ 32 (1 ro) using hieratic notation, [20] as ...
Pinto beans are often soaked, which greatly shortens cooking time. If unsoaked, they are frequently boiled rapidly for 10 minutes. They will then generally take two to three hours to cook on a stove to soften. In a pressure cooker they will cook very rapidly, perhaps 3 minutes if soaked, and 20-45 minutes if unsoaked.
Assuming one pound of green beans contains 35 to 40 pieces and yields about 3 cups of chopped beans, you’ll need about one pound for a party of three, assuming you’re making roasted, steamed ...
1.2 Physics. 1.3 Chemistry. 1.4 Biology. 1.5 Economics. 2 Other equations. Toggle Other equations subsection. ... Black–Scholes equation; Fisher equation Other ...
Many thermodynamic equations are expressed in terms of partial derivatives. For example, the expression for the heat capacity at constant pressure is: = which is the partial derivative of the enthalpy with respect to temperature while holding pressure constant.
(Note - the relation between pressure, volume, temperature, and particle number which is commonly called "the equation of state" is just one of many possible equations of state.) If we know all k+2 of the above equations of state, we may reconstitute the fundamental equation and recover all thermodynamic properties of the system.
The cup is a cooking measure of volume, commonly associated with cooking and serving sizes.In the US, it is traditionally equal to one-half US pint (236.6 ml). Because actual drinking cups may differ greatly from the size of this unit, standard measuring cups may be used, with a metric cup commonly being rounded up to 240 millilitres (legal cup), but 250 ml is also used depending on the ...